Improvement in knife-scouring machines



UNITED STATES PATENT GEFIC'E.

GEORGE B. HALL AND DE WITT LASIHEB, OF FORT PLAIN, NEW YORK.

IMPROVEMENT IN KNIFE-SCOURING MACHINES.

Specification forming part of Letters Patent No. l 77,394, dated May 16, 1876; application led April 7, 1876.

To all whom tt may concern:

Be it known that we, GEORGE B. HALL and DE WITT LAsHER,.both of Fort Plain, in the county'of Montgomery, and State of New York, have invented certain new and useful Improvements in Machines for Scouring or Cleaning Knives, Forks, 85e., whereof the following is a full, clear, and exact description.

The invention consists in a hollow standard or casing, in the upper end of which are arranged two removable and adjustable rubber or other elastic cylinders, and the lower end. whereof constitutes a receptacle for emery -or other polishing material, access being had thereto through a suitable opening in the cas- 111g.

In the drawings forming part hereof, Figure lis a vertical section on line x x of Fig. 2, and Fig. 2 is a top plan view.

A represents a hollow standard or casing, having a suitable base or bed-piece, whereby, if desired, it may be secured to a table, or elsewhere.

open. A portion, B, ot' one side of the casing `is made removable, and has attached to it two .confining-strips, a a, that are also removably let intothe top of the casing, the whole being secured by screws. Permanently secured to the portion B'is -a block, C, ot' wood, having a circulargroove, b, in its face, in which is inserted and held a cylinder of rubber or other yieldingy material. The lower edge of this block rests on shoulders il formed in the sides ot' the casing. D is a similar block, having groove c and rubber e, and loosely confined between the shoulders t' and strips a. A spring, f, is interposed in the rear of block D, between it and the casing, for the purpose of rendering the block andl its rubber automatically adjustable relatively to the article being scoured. g is an'opening in the casing covv be denominated rubbers.

The upper end of this casing is left ered by a door, h. Through this opening access is had to the emery or other polishing material in the lower part of the casing.

The operation is as follows: The article to be cleaned or scoured isv first dipped `into the emery, so as to cause some of it to adhere thereto, and a little water being supplied to the surfaces of the cylinders D (l, which may Thel knife, &c., is inserted Abetween them, as indicated, and drawn up and down a iew times, until its frictional contact with said rubbers shall have cleaned it. The rubbers will eventually be sary to remove the'rubbers from their blocks and reinsert them therein, so as to present a new surface, and soon continuously until the rubbers are worn out. To get at the blocks it is only necessary topremove the portion B a a by undoing their fastenings.

The use of the spring f renders the rubberblock D automatically adjustable in conformity with thesize or thickness of the article being cleaned, as before stated, and said spring also yserves to impart at all times the degree ot' pressure necessary to the operation.

What we claim is- In a knife-cleaning device, the combination of a hollow standard, A, removable portion B a a, block C, automatically-adjustableblock D, and removable and adjustable rubbers d c, constructed and arranged substantially as shown and described.

GEORGE B. HALL..

DE WITT LASHER.

Witnesses:

R. H. SHEAREE, JAG. SNEcK.

Hence, to obtain a new rubbing-surface, it is only neces- 

